TO
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| Title | Setname | Type | ||
|---|---|---|---|---|
| 1 |
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Dissertation on the history, occurance, mining, and economics of Gilsonite | ir_etd | Text |
| 2 |
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Cost of initial mining excavations | ir_etd | Text |
| 3 |
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Economic geology of the sulphur deposits at Sulphurdale, Utah | ir_etd | Text |
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